Ask your AI assistant any tax question and get answers backed by the Internal Revenue Code, Treasury Regulations, IRS Publications, Revenue Rulings, and IRS Notices. No more hallucinated citations.
What are the requirements for the home office deduction?
Under §280A, a home office deduction requires the space to be used:
What about the simplified method?
Works inside the AI tools you already use
The Problem
Thomson Reuters Checkpoint and CCH IntelliConnect charge thousands per seat for clunky web portals. Meanwhile, your AI assistant has no access to authoritative tax sources. It guesses, hallucinates citations, and can't tell you where it found the answer.
Legacy platforms charge hundreds to thousands per seat for basic search. Small firms and solo practitioners get priced out of professional-grade research.
ChatGPT and Claude are great at reasoning about tax law, but without access to real authorities, they fabricate section numbers and cite regulations that don't exist.
Consumer tax tools use outdated information with no citations. When you're advising a client, you need authoritative, up-to-date sources you can verify.
How It Works
Connect taxmcp.io to your AI assistant, then ask tax questions the way you normally would. Every answer comes back with real citations.
Add taxmcp.io to Claude Desktop, ChatGPT, or your preferred AI tool. One URL, under two minutes, and you're researching.
Ask tax questions in plain English. “What are the QBI deduction requirements?” “Show me §199A.” Your AI searches the actual IRC, regs, and rulings.
Every answer includes the exact section number, source URL, and cross-references. Real citations you can verify and share with clients.
Features
Ask questions the way you think about them. “Can my client deduct home office expenses?” returns the exact IRC sections, regs, and rulings that answer it.
Every result cites the exact section number with a link back to the official government source. No hallucinated references. No ambiguity. Citations you can put in a memo.
See how sections connect. When you look up §199A, instantly find every regulation, ruling, and related code section that references it, and everything it references.
Internal Revenue Code, Treasury Regulations, 24+ IRS Publications, Revenue Rulings from 2003–present, and IRS Notices; all searchable from one place.
Our system checks official government sources weekly for changes. You always get the latest version of the law, not last year's snapshot.
Connects to Claude Desktop, ChatGPT, and other AI tools. Your AI assistant gets real tax research capabilities built right in.
Who It's For
Research client positions faster with cited IRC sections, regs, and rulings, right inside your AI assistant.
Professional-grade tax research without the enterprise price tag. Free to start, scales with your practice.
Every answer links to authoritative government sources you can verify and cite in memos and opinions.
Pricing
Free for individual practitioners. Upgrade for unlimited federal research, or add state tax codes with Pro+.
Free
For individual CPAs, EAs, and tax professionals getting started with AI research.
Pro
Unlimited access to every federal tax source. For practitioners who need comprehensive research.
Pro+
For multi-state practices. Adds state tax codes on top of everything in Pro.
Connect taxmcp.io to your AI assistant and get answers backed by the actual tax code. Free to start, takes under two minutes.
FAQ
taxmcp.io indexes five federal tax source types: the full Internal Revenue Code (Title 26), Treasury Regulations, 24+ IRS Publications, Revenue Rulings from 2003 to present, and IRS Notices. All sources are searchable from a single query.
Legacy platforms like Thomson Reuters Checkpoint and CCH IntelliConnect charge hundreds to thousands per seat for web portal access. taxmcp.io starts free, is $9/month for unlimited federal research, and $29/month with state tax codes included. It works inside the AI tools you already use (Claude, ChatGPT) and every result links directly to authoritative government sources.
Yes. taxmcp.io provides an MCP server that connects directly to Claude Desktop and ChatGPT. Install with a single command and your AI assistant gains access to real tax authorities. It also works with any other MCP-compatible client.
Not yet — we're focused on delivering the best MCP experience first. A REST API is on our roadmap. If you have a specific use case, reach out and we'll keep you posted.
Our system checks official government sources weekly for changes. You always get the latest version of the Internal Revenue Code, Treasury Regulations, and other authorities—not last year’s snapshot.
The free plan includes 20 searches per day with access to the Internal Revenue Code. It works with Claude Desktop and ChatGPT, and every result includes real citations. Upgrade to Pro ($9/month) for unlimited searches across all five federal source types, or Pro+ ($29/month) to add state tax codes.